Schedule of Going Concern (Detail) (USD $)	3 Months Ended		9 Months Ended
	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2013	Oct. 31, 2012
Schedule Of Going Concern [Line Items]
Net operating loss	$ 813,487	$ 1,437,225	$ 2,885,846	$ 1,553,404
Cash used in operating activities			$ (928,745)	$ 260,948